Speaker box



FIG. 1 is a perspective view of a speaker box showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof the right view being a mirror image;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for a speaker box, as shown and described. 